Tankless Water Heater Replacement in Hays, KS
From aging Rinnai and Takagi units to tank-to-tankless swaps, we handle tankless water heater replacement in Hays, KS with tidy installs and clear pricing.
- Expert Plumbers
- Reliable Hot Water
- Licensed Gas Line Technicians
- Top Brands Available
Need a New Tankless Water Heater in Hays, KS?
Contact us today for a free estimate and see the benefits of on-demand hot water.
Your Go-To for Tankless Water Heater Replacement in Hays, KS
KRV Plumbing replaces failing tankless water heaters with condensing and non-condensing units sized to your home's real flow demand. We check gas supply, venting clearances and water hardness before recommending a model. That way the new heater is not starved for fuel or clogged by scale.
Our expertise includes:
- Gas line sizing and upsizing for 199,000 BTU tankless units
- Seamless integration with existing plumbing and gas lines.
- Accurate sizing and model selection for your home.

Additional Plumbing Replacement Services in Hays, KS
When repairs are no longer enough, our replacement services in Hays, KS deliver durable upgrades that restore full performance.

Customers
Why Choose KRV Plumbing for Tankless Water Heater Replacement in Hays, KS?
A tankless heater is only as good as its gas supply and venting. We measure both before we quote, so your new unit fires at full output instead of cutting out on high demand.
- Scale Protection, Every install includes isolation valves so the heat exchanger can be descaled without cutting pipe.
- Longer Lifespan, Tankless water heaters usually last longer than conventional tank units, often up to 20 years with proper maintenance, offering better long-term value.
- Right-Sized Units, We calculate gallons per minute and temperature rise for your fixtures instead of guessing from square footage.
Citywide Coverage
KRV Plumbing is proud to serve every neighborhood of Hays, so no matter where you are, expert tankless water heater replacement is just a call away. We understand the different housing types across Hays and tailor our service to each home's needs.
Experienced Team
When you choose KRV Plumbing, you get a team that knows the ins and outs of every major tankless brand. That means a precise and reliable installation for your home's requirements.
Safety-First Approach
We follow local code and manufacturer instructions for gas piping, combustion air, condensate disposal and venting terminations. Permits are pulled where required, and we test combustion before we leave.
Trusted Certified Hays Plumbing Services Professionals
At KRV Plumbing, we take pride in providing licensed, certified plumbing services throughout Hays, KS. Backed by recognized industry credentials, our experienced plumbers combine technical skill with genuine customer care. Whether it is repair, installation, or maintenance, we follow strict safety and quality standards to deliver lasting results you can trust.
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PHCC Plumbing Contractor Recognition
Better Business Bureau (BBB) Accreditation
Angi Certified Pro
ISO 9001 Quality Management CertificationProfessional Tankless Water Heater Replacement Services in Hays, KS
Recirculation Tankless Upgrades in Hays, KS
If you are tired of running the tap while you wait for hot water, a tankless with a built-in recirculation pump can bring heat to the fixture in seconds. Navien A series and Rinnai units with internal pumps can use a dedicated return line or a crossover valve under the farthest sink. We program schedules so the pump runs only during your morning and evening peaks. That keeps gas use reasonable while saving thousands of gallons of wasted water a year. This upgrade is popular in long single-story ranch homes.

Commercial Tankless Replacement in Hays
Restaurants, salons and small offices often use multiple tankless units linked together on a rack system. When one or more units fail, we replace them and rebalance the cascade controls so they split the load. We check gas pressure under full demand, since commercial racks can draw more than 600,000 BTU combined. Scheduling is easy to work around, so we can work after hours and keep your business open. We also set up a descaling schedule matched to your water usage.
Navien Tankless Water Heater Replacement in Hays, KS
Navien tankless water heaters are popular for their condensing technology, offering high efficiency and performance. When it is time for a Navien tankless water heater replacement in Hays, KS, you can count on KRV Plumbing. We have extensive experience with Navien's advanced systems, including their combination boiler and water heater units. Our installation process focuses on optimizing your new Navien's performance, so you benefit from its energy-saving features and reliable hot water output.
Tank to Tankless Conversions in Hays, KS
Converting from a 40 or 50 gallon tank to tankless frees up floor space and ends standby heat loss in a garage or closet. The catch is that tankless units often need a larger gas line, often three quarter inch or bigger, plus new venting. We evaluate your meter size and pipe run before quoting so there are no surprises mid-job. We also cap or reroute the old flue and seal the roof penetration if it is no longer used. Expect a conversion to take a full day.
Emergency Tankless Replacement in Hays, KS
A tankless heater that leaks from the heat exchanger or refuses to ignite can leave you with no hot water at all. We offer same-day emergency replacement for common models and can usually get a unit installed the day you call. If your exact model is not in stock, we can sometimes do a temporary repair to restore hot water while the replacement ships. We shut off gas and water to stop any leak on arrival. Call (316) 229-8459 anytime your tankless quits.
Rinnai Tankless Water Heater Replacement in Hays
Rinnai is a leading brand in the tankless water heater market, known for its quality and engineering. If your Rinnai unit is aging or acting up, KRV Plumbing provides expert Rinnai tankless water heater replacement in Hays. We make sure your new Rinnai unit is installed correctly, maximizing its efficiency and lifespan. Our technicians know the installation requirements and venting options for Rinnai models, so the upgrade goes smoothly.
Tankless vs. Tank Water Heater Replacement Cost in Hays, KS
When considering tankless water heater replacement in Hays, KS, it is natural to compare costs. While the upfront installation of a tankless unit can be higher than a traditional tank, the long-term energy savings and longer lifespan often make it the more cost-effective choice. We provide honest, upfront pricing for both options. That helps you make an informed decision based on your budget and hot water needs, with no surprises.

Electric Tankless Water Heater Replacement in Hays, KS
For properties without natural gas access or those looking for an all-electric solution, electric tankless water heaters are a practical choice. KRV Plumbing offers electric tankless water heater replacement services in Hays, KS. This often involves careful assessment of your home's electrical panel capacity, as these units require significant amperage. We make sure your new electric tankless unit is installed safely and effectively, providing on-demand hot water without the need for gas lines.
Tankless Water Heater Replacement Near Me in Hays, KS
When your tankless unit needs replacing, you want a trusted local company. We aim to be the go-to choice for tankless water heater replacement near me in Hays, offering reliable solutions and upfront pricing to our neighbors throughout the community.
If you are searching for tankless water heater replacement near me, you want a local plumber who understands Kansas water and gas codes. KRV Plumbing serves Hays with trucks stocked for tankless installs. We can usually give you a firm quote after a short phone call and a few photos.
KRV Plumbing at a Glance
- Fully licensed plumbing team covering Hays, KS
- Same-day appointments and 24/7 emergency response
- Upfront, flat-rate pricing before work begins
- 4.9-star rated by 910+ Kansas customers
Hays Map
Hays Information
- Population
- 21,040
- Area codes
- Local
- Service area
- Hays and communities within 40 miles
- Nearby
- Dodge City, Salina, Hutchinson, Garden City
Replacing an old tankless water heater in Hays, KS is important for a reliable hot water supply, especially with shifting seasonal demands and mineral content that can cut into unit efficiency and lifespan.
Expert Services
Trust our professionals for reliable KRV Plumbing solutions in Hays, KS.
Our Specialized Plumbing Services in Hays, KS
At KRV Plumbing, we provide a complete range of plumbing services across Hays, KS. From leak detection to full system installations, our team ensures fast, precise, and affordable service for both residential and commercial properties. Explore our core services below:
How Our Tankless Water Heater Replacement Process Works in Hays, KS
Our tankless water heater replacement process is designed to be simple and stress-free for homeowners in Hays, KS.
Request a Quote
Call us at (316) 229-8459 or fill out our online form to schedule an initial consultation. We will discuss your hot water needs and current system issues, and provide a detailed, upfront estimate.
On-Site Assessment
Our licensed plumber will visit your Hays home to look over your existing water heating system, plumbing, gas or electrical connections and venting. This helps us recommend the best tankless model and make sure it is properly sized for your household.
Expert Installation
Once you approve the quote, our team will start the professional installation of your new tankless water heater. We carefully remove the old unit, make any needed plumbing or gas line changes, and make sure the new system is correctly vented and fully operational.
Frequently Asked Questions About Tankless Water Heater Replacement in Hays
A like-for-like gas tankless replacement usually runs $2,800 to $4,500 installed, depending on the brand and venting. Converting from a tank to tankless often costs $4,000 to $6,500 because of gas line and venting upgrades. We give you a written quote before we start any work.
A standard tankless water heater replacement, if you are upgrading from an existing tankless unit, usually takes 4 to 8 hours. If you are converting from a traditional tank water heater, the process can take longer, possibly a full day, due to additional plumbing, gas or electrical changes required for proper installation and venting.
Yes, tankless water heaters are generally more energy-efficient than traditional tank models. They only heat water on demand, eliminating the standby heat loss that comes with keeping a large tank of water hot. This can lead to significant savings on your utility bills over time, especially in homes with varying hot water usage.
To prepare for tankless water heater replacement, make sure the area around your existing unit is clear and easy to reach for our plumbers. If possible, clear a path to the installation site and keep pets or children safely out of the work area. We will handle draining the old unit and all other technical preparations.
With proper installation and regular maintenance, a new tankless water heater usually lasts 20 to 25 years. This is much longer than traditional tank water heaters, which usually last 10 to 15 years. Regular flushing and descaling can help extend the life of your tankless unit, especially in hard water areas.
KRV Plumbing installs and replaces all major reputable brands of tankless water heaters. Our preferred brands include Rinnai, Navien, Noritz and Rheem, as they are known for their reliability, energy efficiency and long-term performance. We can also source and install other brands based on your preference or home requirements.
New tankless water heaters usually come with a manufacturer's warranty, which usually covers the heat exchanger for 10 to 15 years and parts for 3 to 5 years. KRV Plumbing also provides a labor warranty on our installation work for your peace of mind. We will discuss warranty details for your chosen unit during your consultation.
Yes. Softened or scale-treated water sharply reduces mineral buildup in the heat exchanger. We can install a scale-reduction filter if a full softener is not in your plans.
What People Are Saying About Our Plumbing Experts?

Robert G.
The trenchless sewer replacement saved our front yard. They walked us through the camera inspection footage first so we knew exactly what we were paying for.
Sewer Line Replacement · Dodge City, KS
Mark T.
When our office needed drain cleaning, KRV Plumbing provided quick, reliable service. The plumber arrived on time and made sure every drain flowed perfectly before leaving. Very satisfied.
Drain Cleaning · Dodge City, KS
Sofia M.
Two new toilets installed in one visit, no mess left behind, and the tech even adjusted a faucet he noticed was dripping. Fair pricing and really friendly.
Toilet Installation · Wichita, KS
James P.
Our commercial plumbing system had a leak under the sink, and KRV Plumbing handled it professionally. The plumbers arrived quickly and restored everything without disruption to our customers.
Commercial Plumbing · Dodge City, KS
Patricia H.
We had a slab leak that two other companies could not find. KRV Plumbing located it in under an hour, explained our options, and the price matched the quote to the dollar.
Slab Leak Repair · Wichita, KS
Laura S.
I scheduled a water heater replacement, and the team made the process smooth and affordable. The new unit works perfectly, and they cleaned up after completing the job.
Water Heater Replacement · Wichita, KS













